Home / 1,441,186.12-1,988,633.59-821,007.60

Finding the Fourth Proportional to 1,441,186.12, 1,988,633.59 and 821,007.60

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Solution

The fourth proportional to 1,441,186.12, 1,988,633.59 and 821,007.60 is: 1,132,874.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,186.12 : 1,988,633.59 = 821,007.60 : x
  2. Step 2: Convert to fraction form
    1,441,186.12/1,988,633.59 = 821,007.60/x
  3. Step 3: Cross multiply
    1,441,186.12x = 1,988,633.59 × 821,007.60
  4. Step 4: Simplify right side
    1,441,186.12x = 1,632,683,291,005.28
  5. Step 5: Solve for x
    x = 1,632,683,291,005.28/1,441,186.12
  6. Step 6: Final answer
    x = 1,132,874.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.